Improvement in spinning-jack



NAPETERS. PHOTO-LITHDGRAFHR, WASHINGTON. Dv C vers dimitri @www wwwaeeazeeww JACOB SANDS, OF'WATERLOO, NEW YORK.

Letters Patent No. 84,218, dated November 17, 1868.

IMPROVEMENT IN SPINN ING-J' ACK..

The Schedule referred to in these Letters Ptent and making part of the same.

To all whomit may concern:

Be it known that I, JACOB SANDS, of Waterloo, in the county of Seneca, and State of New York, have invented a new and useful Improvement in Spinning- Jacks; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled'in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification. 'f

This invention relates to improvements in spinningjacks, the object of which is to provide a more eicient and reliable friction-device for the carriage.-

`It consists in an arrangement of mechanism for automatically changing the friction-belt, whereby the carriage is madeto eiect the said changes, as will be hereinafter described.

Figure l represents a longitudinal sectional elevar tion of ajack having my improvements applied to it, the line x z of iig. 2 showing the plane ofthe section;

Figure 2 represents a plan view ofthe same; and,

Figure 3 represents an elevation of a portion of the head of the machine.

Similar letters of reference indicate like parts.`

A represents ablock, arranged upon the bed ofthe machine, to slide a short distance, having an inclined guide, c, and a stop-block, l), upon its upper face.

G represents an arm projecting downward from the under side of the carriage, from which is suspended a vibrating catch, (l.

The sliding block A is connected by a cord or rod, e, to a trigger, j, arranged upon one of the posts j,

' which support the pulley-shaft h', and bears against the slotted sprng-latch i, connected to the belt-shifting bar la, by a pin passing through its slot, and connected at its other end to the spring l. It is also connected by a link to the lever m.

N representsl a bell-crank, pivoted at o to the frame, and connected at one end to the belt-shifting bar 7u,

while it supports, at the other end, a weight, p, adjustable thereon.

When the twisting has been accomplished, and the belt shift-ed in backing off, to wind up the yarn, the

vibrating catch (Z will fall behind the square end of the stop-block b ou the sliding block A, which will be moved backward a short distance by the said catch, thereby moving the trigger f, to throuT the spring-catch i oli' from its connection behind the post j, allowing the spring l to draw the belt-shifter, so as to throw the belt sufliciently on to the fast pulley g to produce the necessary amount oi friction. The weight 11, to

some extent, counteracts the action of the spring, andis intended to be used to vary the amount of friction, by adjusting it on the arm of the lever n, to or from thepivot o, and thereby vary the capacity of the spring l, and consequently the amount it will force the belt on to the said fast pulley.

When the carriage is run back, the arni o', carrying at its end a frictii'in-bowl, will strike the curved end of the lever fm', andcause it to draw the spring-catch i back, tolock behind the postj again, when the weighted arm n will throw the belt-shifting slide back, so as to cause the belt to run back on to the loose pulley, thereby relieving the carriage from the friction.

'Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- 1. The combination, with the sliding block A, trigger j, spring-catch i, and belt-shifter 7.', of the vibrat-y ing catch d, on the carriage, when arranged substain tially as and for the purpose described.

2. The combination, with the spring-latch 'i and beltshifter 7c, of the weighted lever n, when arranged substantially as and for the purpose described.

3. The combination, with the sliding' catch i and belt-shifting slide 1.', of the lever m and the projection c' on the carriage,V when arranged substantially as and -for the purpose described.

.JACOB SANDS. \Vitnesses:

TOM FILLDIGHAM, ASA D. BAKER. 

